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Heritage Mining Announces Positive Preliminary Drill Results at Drayton Black Lake Project

VANCOUVER, BC — October 9, 2025 — Leads & Copy — Heritage Mining Ltd. (CSE: HML FRA:Y66) has announced preliminary results from its Fall 2025 diamond drill program at the Zone 3 extension of the Drayton Black Lake project. The first hole intersected the Mega Quartz Vein Structure approximately 185m along strike.

Two additional holes have been completed and are being processed. These holes intersected a major northeast-southwest striking linear magnetic feature within the granite. The first scout hole (HML25-016) intersected the Mega Quartz Vein Structure at approximately 15m in core length (true width unknown).

Drilling extended a broad zone of granite-hosted quartz vein mineralization approximately 185m. Vein width is approximately 15.51m in core length (from 87.49.00m to 103.00m), true width unknown.

Locally visible sulfides, including molybdenite and pyrite, occur with alteration comprising silica, hematite, and K-feldspar. The interval shows 15.51m of sulfide-bearing quartz similar to gold mineralization intervals from HML25-013, press released September 9, 2025, and highlighted below:

0.98 g/t Au over 5.00m from 101.00m

1.11 g/t Au over 11.09m from 115.91m Including: 4g/t Au over 2m from 125m

Drill core is being logged, split, and sent for assay as soon as possible.

The company's fall exploration plans include:

  • Soil/Till Orientation Survey over Zone 3 Extension Area – Near Completion
  • Follow-up Soil/Till Survey – success based on Orientation Survey (Figure 1) expected Q4 2025, weather permitting
  • Outcrop/Vein stripping permit received above HML25-013 – In Progress
  • Initiate a structural Study of the Mega-Quartz Vein System
  • Diamond Drilling Q4, 2025/Q1 2026 (Figure 3) – Near Completion

Peter Schloo, President, CEO and Director of Heritage Mining, commented that the company is extremely pleased to have extended such a broad vein zone in the first scout hole at Zone 3 Extension prospect Fall 2025 exploration program and is looking forward to communicating additional drill results, soil orientation program and stripping results at the Zone 3 Extension Target in due course.

Contact:

Peter Schloo, CPA, CA, CFA
President, CEO and Director
Phone: (905) 505-0918
Email: peter@heritagemining.ca

Source: Heritage Mining Ltd.